DocumentCode
276347
Title
Input current shaping in brushless DC motor drives utilizing inverter current control
Author
Skinner, J. ; Lip, T.A.
Author_Institution
Wisconsin Univ., Madison, WI, USA
fYear
1991
fDate
11-13 Sep 1991
Firstpage
121
Lastpage
125
Abstract
It is proposed that the PWM inverter of a conventional brushless DC motor drive be treated as a buck converter. In particular, if the DC link capacitor is simply eliminated then a basic buck configuration current shaper can be realized. In this configuration the inverter switches can be used to control the motor current as before but can also be used indirectly to shape the average input current wave shape. In effect the control strategy hinges on the fact that the power to the rectifier pulsates unidirectionally at twice line frequency if the input current is sinusoidal and the power factor is unity
Keywords
DC motors; electric current control; electric drives; invertors; machine control; PWM inverter; brushless DC motor drives; buck converter; control strategy; input current shaping; inverter current control;
fLanguage
English
Publisher
iet
Conference_Titel
Electrical Machines and Drives, 1991. Fifth International Conference on (Conf. Publ. No. 341)
Conference_Location
London
Print_ISBN
0-85296-520-6
Type
conf
Filename
153977
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